An account of the discovery of Jupiter as a radio source

Franklin, K. L.

doi:10.1086/107852

Cited by 22 publications

(2 citation statements)

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“…Within the solar system the Sun itself was early known to have variable radio flux, but it is indicative of the then adolescent state of radio astronomy that decametric waves from Jupiter, detected using the most sensitive long wavelength apparatus available to Bernie Burke in 1955 and immediately found to be highly variable, were first reported in the Journal of Geophysical Research (Burke & Franklin 1955) and only later in the Astronomical Journal (Franklin 1959). This work helped lay foundations for later understanding of the magnetosphere of Jupiter; in particular the modulation of its radio emission by the position of satellite Io in orbit led to a uni-(or homo-) polar inductor model (Goldreich & Lynden-Bell 1969) with later relevance not only to volcanism on Io but more widely with applications to compact binaries, black holes, pulsars, the moon surrounded by the solar wind, the solar wind itself, sunspots, and planetary magnetic tails.…”

Section: Early Historymentioning

confidence: 99%

The Power of the Unexpected

Warner

2011

Proc. IAU

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Abstract. The history of astronomy has provided variable sources of unexpected kinds-from novae recorded in oriental archives, rapid radio, optical and high-energy changes in white dwarfs, neutron star and black hole binaries, to recent discoveries with satellites. A brief overview is given, as a prelude to a conference that anticipates a tidal wave of observations and discoveries to be made at all wavelengths during the next five to ten years.

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Section: Early Historymentioning

confidence: 99%

The Power of the Unexpected

Warner

2011

Proc. IAU

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“…They found another conspicuous radio source [ Franklin , 1959], but unlike the Crab, its position shifted as days passed. Standing next to the array one night, Bernie noted a star overhead and asked Ken “what is that bright thing up there?” It was Jupiter, and that was where the signal was coming from.…”

Section: Planetary Magnetospheresmentioning

confidence: 99%

A Millennium of Geomagnetism

Stern

2002

Reviews of Geophysics

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The history of geomagnetism began around the year 1000 with the discovery in China of the magnetic compass. Methodical studies of the Earth's field started in 1600 with William Gilbert's De Magnete [Gilbert, 1600] and continued with the work of (among others) Edmond Halley, Charles Augustin de Coulomb, Carl Friedrich Gauss, and Edward Sabine. The discovery of electromagnetism by Hans Christian Oersted and André‐Marie Ampére led Michael Faraday to the notion of fluid dynamos, and the observation of sunspot magnetism by George Ellery Hale led Sir Joseph Larmor in 1919 to the idea that such dynamos could sustain themselves naturally in convecting conducting fluids. From that came modern dynamo theory, of both the solar and terrestrial magnetic fields. Paleomagnetic studies revealed that the Earth's dipole had undergone reversals in the distant past, and these became the critical evidence in establishing plate tectonics. Finally, the recent availability of scientific spacecraft has demonstrated the intricacy of the Earth's distant magnetic field, as well as the existence of magnetic fields associated with other planets and with satellites in our solar system.

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1970

Radio Emission of the Sun and Planets

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An account of the discovery of Jupiter as a radio source

Cited by 22 publications

References 0 publications

The Power of the Unexpected

The Power of the Unexpected

A Millennium of Geomagnetism

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